Combinations and Permutations

Learn how to tell the difference between permutations and combinations and use the formulae to answer questions.

Time: 7:38

 

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Number Jigsaws

Number Jigsaws

Online, interactive jigsaw puzzles of grids of numbers. So far this activity has been accessed 36789 times and 3590 people have earned a Transum Trophy for completing it.

Teacher: Click the play button in the centre of the video screen above. In the bottom right corner of the video (when you cursor moves over the playing video) is a broken square button which opens full-screen mode.

Combinations and Permutations

Learn how to tell the difference between permutations and combinations and use the formulae to answer questions.

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